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-10% Terminator EFI 2x4 Upgrade Kit

Do you already have one of Holley's Terminator EFI Systems and want to add a second throttle body for a twin 4-BBL setup? We've made it easy!

You can take your pick of any of the five different color/style combinations (including the standard silver and gray throttle bodies) and couple this with your existing Terminator kit to have everything you need.  Bolt this onto your 2x4 intake manifold, add the linkage and air cleaners, plumb the fuel and configure according to included instructions. And, as with all of our kits and systems, you get personalized technical support from our in-house Holley-trained Tier III technician.

This kit includes:

  • Slave Terminator throttle body with injectors
  • Fuel Line Assemblies (for Stealth throttle bodies only)
  • New Terminator 2x4 Main Harness
  • Terminator 2x4 Injector Harness
  • Base and air filter gaskets

The Twin Terminator system is built to order and, as such, special order terms apply. Please reference our Terms & Conditions for Special Orders.

Or Maybe You're Starting From Scratch

Did you arrive here looking to build a complete dual-quad throttle body EFI system from the ground up? In that case, save time, money, and frustration by purchasing our complete Twin Terminator Dual Quad Throttle Body Kit! We've eliminated all of the guesswork. Your system will arrive completely configured and ready to install and start.

Note:  Holley Terminator EFI Systems with twin throttle bodies benefit from dyno tuning.  Be sure to purchase the optional USB cable if you don't have one already.  You can download the laptop tuning software here. Also, clearance and linkage are always issues of concern on a twin throttle body setup. We're happy to provide whatever measurements you need in advance of your purchase so you can ensure fitment. In virtually all cases Stealth throttle bodies must be mounts with the fuel tanks to the sides of the engine.

Watch this video from one of our Customer's cars!

ECU
Boost ControlYes
DIS OutputsNone
FamilyTerminator
Fueling StrategySpeed Density, Alpha-N, or Combination
Includes Power HarnessYes
Injector DriversEight
Internal Datalogging4GB
Knock Control Channels0
Nitrous ControlYes
Number of Cylinders4, 6, or 8 (Even Fire Only)
User Configurable I/OYes
User-Selectable MAP StorageNo
Water-Methanol ControlYes
Displays And Controllers
Auto BrightnessNo
CAN Bus CapableYes (Specific to Holley ECUs Only)
Case/Bezel FinishBlack
ConfigurableMonitor dozens of pre-configured metrics provided by the ECU, including sensors, air/fuel ratio, switched outputs, drive-by-wire data, and more.
Data LoggingYes
Display TypeLCD
FunctionsMonitor, Tuning
Gauge/Display Size3.5 Inch Rectangular
Internal StorageYes (SD Card)
TouchscreenYes
Throttle Bodies
Airflow Rate (CFM)950 CFM
Barrels (BBL)2 x 4
Gaskets IncludedYes
IAC Motor IncludedYes
Injectors IncludedYes
StyleThrottle Body Injection
Throttle Bore Diameter (ea)44.45mm
TPS Sensor IncludedYes
Fuel Injectors
Flow Rate (Lbs / Hr)80 PPH
Harnesses
Harness TypePower Harness, Main Harness, TBI Injector Sub-Harness, I/O Harness, Ignition Adapter, 2x4 Throttle Body Injector Harness
TerminatedYes
Crank Timing
Sensor Harness IncludedNo (Ignition Adapter Only)
Sensors
Type1 BAR MAP, Throttle Position (Integrated in TB); Coolant Temperature, Wideband O2 and Air Temperature Sensor; Fuel Pressure Sensor optional, not included
General
Also Included40-Amp Relay.
ApplicationUniversal (Requires intake manifold for two square bore throttle bodies)
ColorYour choice of Polished Aluminum, Hard Core Gray or Classic Gold
Emission Code3
Unit of SaleKit

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Terminator EFI 2x4 Upgrade Kit

  • Views: 2740
  • Brand: EFI System Pro
  • Product Code: TWINTERMUPGR-xx
  • Availability: In Stock
  • $1,346.70
  • $1,212.03

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